The effect of mutations of Newcastle disease virus (NDV) fusion (F) gene, hemagglutinin-neuraminidase (HN) gene, and phosphoprotein (P) gene and HN chimeras between the virulent Beaudette C and low virulence LaSota strains on pathogenesis and pathogenicity was examined in fully susceptible chickens. A virulent F cleavage site motif within a LaSota backbone increased pathogenicity and severity o...

Accurate dose delivery is essential for the success of intensity-modulated radiation therapy (IMRT) for patients with head-and-neck (HN) cancer. Reproducibility of IMRT dose delivery to HN regions can be critically influenced by treatment-related changes in body contours. Moreover, some set-up margins may not be adaptable to positional uncertainties of HN structures at every treatment. To obtai...

Inverse problems study the structure of a set A when the A+A is “small”. In the article, the structure of an infinite set A of natural numbers is described when A+A has the least possible upper asymptotic density and A contains two consecutive numbers. For example, if the upper asymptotic density α of A is between 0 and 2 , the upper asymptotic density of A+A is less than or equal to 3 2α, and ...

The quantal nature of transmitter release has been analysed at central inhibitory synapses in the leech nervous system between an interneurone (HN) and a motoneurone (HE) that regulate the heartbeat. 1. Ganglia were bathed in leech Ringer fluid containing 20 mM-Mg and 1.8 mM-Ca and the membrane of the presynaptic HN interneurone was hyperpolarized by current injection. Under these conditions su...

In order to explore the effects of different concentrations acid rain on soil nutrient content and utilization efficiency, provide a basis for an improvement in acidified regions, year-long experiment was conducted typical evergreen broad-leaved forest coniferous mixed Jinyun Mountain Chongqing. Four pH treatments (pH 4.5, 4.0, 3.25, 2.5) were established simulate rain. The results showed that:...

We consider an obstacle problem in the Heisenberg group framework, and we prove that the operator on the obstacle bounds pointwise the operator on the solution. More explicitly, if ¯ u minimizes the functional Ω |∇Hn u| 2 among the functions with prescribed Dirichlet boundary condition that stay below a smooth obstacle ψ, then 0 ≤ ∆Hn ¯ u ≤ ∆Hn ψ +. Moreover, we discuss how it could be possible...

The Murphy operators in the Hecke algebra Hn of type A are explicit commuting elements, whose symmetric functions are central in Hn. In [8] I defined geometrically a homomorphism from the Homfly skein C of the annulus to the centre of each algebra Hn, and found an element Pm in C, independent of n, whose image, up to an explicit linear combination with the identity of Hn, is the mth power sum o...

When 2−1/Q<p≤2, we establish the Cloc0,1 and Cloc1,α-regularities of weak solutions to quasi-linear p-Laplacian type non-homogeneous equations in Heisenberg group Hn, where Q=2n+2 is homogeneous dimension Hn.